Backflow prevention device for gas explosion fountain

Abstract

The utility model discloses an anti-backflow device for a gas explosion fountain, which relates to the technical field of anti-backflow devices and comprises a shell, a circular ring is arranged inside the left side of the shell, a cross-shaped limit frame is fixedly connected inside the circular ring, and a filter screen plate is fixedly connected inside the cross-shaped limit frame. A cross-shaped limiting frame is installed on the shell, a fixing plate is fixedly installed at the axis position of the cross-shaped limiting frame, an anti-backflow assembly is fixedly installed on the right side of the fixing plate, a supporting assembly is fixedly installed on the right side of the cross-shaped limiting frame, a connector is installed on the right side of the shell, and a pipeline is installed on the right side of the connector. When the water flow tries to flow backwards, the non-return piece can be rapidly closed through the telescopic rod and the spring, the position of the non-return piece can be automatically adjusted through the elasticity of the spring according to the change of the pressure of the water flow, the water flow is effectively prevented from flowing backwards, and normal operation of the gas explosion fountain system is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of backflow prevention devices, in particular to a backflow prevention device for gas explosion fountains. Background Art

[0002] As a unique landscape facility, the gas explosion fountain not only brings visual enjoyment to people, but its internal anti-backflow device is also crucial. In the prior art, the anti-backflow device of the gas explosion fountain often has many problems, such as poor sealing performance leading to frequent backflow, impurities easily clogging the device and affecting normal operation, insufficient response to pressure changes, and complex structure that is not conducive to installation and maintenance. These defects not only affect the normal working effect of the gas explosion fountain, but also increase the maintenance cost and operation difficulty. To this end, we propose an anti-backflow device for the gas explosion fountain. Utility Model Content

[0003] The utility model aims to provide a backflow prevention device for a gas explosion fountain.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a backflow prevention device for a gas explosion fountain, comprising a shell, a circular ring is provided inside the left side of the shell, a cross limit frame is fixedly connected inside the circular ring, a filter screen is fixedly connected inside the cross limit frame, a fixing plate is fixedly installed at the axis of the cross limit frame, an anti-backflow assembly is fixedly installed on the right side of the fixing plate, the anti-backflow assembly comprises a telescopic rod, a spring and a check plate, the right side of the telescopic rod and the left side of the check plate are fixedly connected, the inner wall of the spring is sleeved on the circumferential surface of the telescopic rod, a support assembly is fixedly installed on the right side of the cross limit frame, the support assembly comprises a support plate, a rotating rod and a sliding rod, the right side of the support plate is connected to the circumferential surface of the rotating rod, the left inner wall of the support plate is connected to the circumferential surface of the sliding rod, a joint is installed on the right side of the shell, the joint comprises an upper clamping piece and a lower clamping piece, the upper clamping piece and the lower clamping piece are fixedly connected by screws and bolts, and a pipe is installed on the right side of the joint.

[0005] As a further solution of the utility model: a slide groove is provided on the right side of the cross limit frame, and the front and rear ends of the slide rod are connected to the inner wall of the slide groove.

[0006] As a further solution of the utility model: a fixing block is fixedly installed on the left side of the non-return plate, and the upper and lower ends of the rotating rod are connected to the inner wall of the fixing block.

[0007] As a further solution of the utility model: the left side of the spring is connected to the right side of the fixing plate, and the right side of the spring is connected to the left side of the check plate.

[0008] As a further solution of the utility model: a threaded hole is provided on the top of the joint, and the inner wall of the threaded hole is threadedly connected to the circumferential surface of the screw.

[0009] As a further solution of the utility model: a flange is fixedly installed on the left side of the shell, a mounting hole is opened on the left side of the flange, the inner wall of the mounting hole is threadedly connected to the circumferential surface of the threaded rod, and the left side of the threaded rod is threadedly connected to the inner wall of the nut.

[0010] As a further solution of the utility model: a clamping block is fixedly installed on the circumferential surface of the non-return plate, and rubber rings are fixedly installed on the inner walls of the upper clamping plate and the lower clamping plate.

[0011] By adopting the above technical solution, compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The utility model sets an anti-backflow component, and through the cooperation between the telescopic rod, the spring and the check plate, the water can flow normally when the water hits the check plate, and the check plate can be quickly closed by the telescopic rod and the spring when the water tries to flow back, and the elasticity of the spring can automatically adjust the position of the check plate according to the change of the water pressure, effectively preventing the water from flowing in the opposite direction, and ensuring the normal operation of the gas explosion fountain system;

[0013] 2. The utility model provides a support assembly, and the support plate can provide stable support for the anti-backflow assembly. When the water flow pressure changes frequently, the stable support can enable the check plate to always accurately respond to the change of water flow and close in time to prevent backflow. Through the cooperation of the rotating rod and the sliding rod, the check plate is smoother and more flexible when opening and closing. When the water flows in the forward direction, the check plate can be smoothly opened under the guidance of the rotating rod and the sliding rod, thereby reducing the water flow resistance and improving the working efficiency of the fountain.

[0014] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and will be apparent to those skilled in the art based on the following examination and study, or may be taught from the practice of the present invention to some extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional schematic diagram of the overall structure in the embodiment of the utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the overall structure in the embodiment of the utility model;

[0017] Figure 3 It is a three-dimensional schematic diagram of the filter screen plate in the embodiment of the utility model;

[0018] Figure 4It is a three-dimensional schematic diagram of the backflow prevention component in the embodiment of the utility model;

[0019] Figure 5 It is a three-dimensional schematic diagram of the support assembly in the embodiment of the utility model.

[0020] In the figure: 1. shell; 2. ring; 3. cross limit frame; 4. filter screen; 5. fixing plate; 6. anti-backflow assembly; 61. telescopic rod; 62. spring; 63. check plate; 7. support assembly; 71. support plate; 72. rotating rod; 73. sliding rod; 8. joint; 81. upper clamp; 82. lower clamp; 9. pipeline; 10. flange; 101. threaded rod. DETAILED DESCRIPTION

[0021] The specific implementation modes of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these implementation modes is used to help understand the present invention, but does not constitute a limitation to the present invention.

[0022] In addition, the technical features involved in each embodiment of the present invention described below can be combined with each other as long as there is no conflict between them.

[0023] Please see attached Figure 1 -Attached Figure 5 The utility model discloses a backflow prevention device for a gas explosion fountain, comprising a shell 1, a circular ring 2 is arranged inside the left side of the shell 1, a cross limit frame 3 is fixedly connected inside the circular ring 2, a filter screen plate 4 is fixedly connected inside the cross limit frame 3, a fixing plate 5 is fixedly installed at the axis of the cross limit frame 3, a backflow prevention component 6 is fixedly installed on the right side of the fixing plate 5, and the backflow prevention component 6 comprises a telescopic rod 61, a spring 62 and a check plate 63, the right side of the telescopic rod 61 is fixedly connected to the left side of the check plate 63, and the spring 62 is fixedly connected to the right side of the check plate 63. The inner wall of the cross limit frame 3 is sleeved on the circumferential surface of the telescopic rod 61, and a support assembly 7 is fixedly installed on the right side of the cross limit frame 3. The support assembly 7 includes a support plate 71, a rotating rod 72 and a sliding rod 73. The right side of the support plate 71 is connected to the circumferential surface of the rotating rod 72, and the left inner wall of the support plate 71 is connected to the circumferential surface of the sliding rod 73. A joint 8 is installed on the right side of the shell 1, and the joint 8 includes an upper clamping piece 81 and a lower clamping piece 82. The upper clamping piece 81 and the lower clamping piece 82 are fixedly connected by screws and bolts, and a pipe 9 is installed on the right side of the joint 8.

[0024] In one embodiment of the present invention: a slide groove is provided on the right side of the cross limiting frame 3, and the front and rear ends of the slide rod 73 are connected to the inner wall of the slide groove.

[0025] In one embodiment of the present invention: a fixing block is fixedly installed on the left side of the non-return plate 63, and the upper and lower ends of the rotating rod 72 are connected to the inner wall of the fixing block.

[0026] In one embodiment of the present utility model, the left side of the spring 62 is connected to the right side of the fixing plate 5 , and the right side of the spring 62 is connected to the left side of the check plate 63 .

[0027] In one embodiment of the present invention: a threaded hole is provided at the top of the joint 8, and the inner wall of the threaded hole is threadedly connected to the circumferential surface of the screw.

[0028] In one embodiment of the utility model: a flange 10 is fixedly installed on the left side of the shell 1, a mounting hole is opened on the left side of the flange 10, the inner wall of the mounting hole is threadedly connected to the circumferential surface of the threaded rod 101, and the left side of the threaded rod 101 is threadedly connected to the inner wall of the nut.

[0029] In one embodiment of the present invention: a clamping block is fixedly mounted on the circumferential surface of the non-return plate 63 , and rubber rings are fixedly mounted on the inner walls of the upper clamping plate 81 and the lower clamping plate 82 .

[0030] Example 1, please refer to the attached Figure 1 -Attached Figure 2 Through the cooperation of the rotating rod 72 and the sliding rod 73, the support plate 71 moves back and forth on the sliding rod 73, which can make the check plate 63 more flexible and smooth when opening and closing. The reset effect of the spring 62 enables the check plate 63 to quickly change the water flow when it flows in from different directions, thereby enhancing the anti-backflow effect. In the case of more drastic changes in the water flow, the spring 62 can play a buffering role and reduce the impact force on the check plate 63. There may be changes in pressure in the gas explosion fountain system. The spring 62 can help the check plate 63 adapt to such changes, thereby ensuring that backflow can be effectively prevented under different pressure conditions.

[0031] Example 2, please refer to the attached Figure 3 -Attached Figure 4-5 , installing the joint 8 at the connection between the backflow prevention component 6 and the pipe 9 can provide a strong and reliable clamping force to ensure that the joint 8 and the pipe 9 are tightly connected and not easy to loosen, effectively preventing water leakage and detachment. The joint 8 is connected by screws and bolts, which is convenient for installation and disassembly. Rubber rings are installed on the inner walls of the upper clamp 81 and the lower clamp 82 to increase the sealing performance of the contact with the pipe 9. The installation flange 10 can be firmly connected to the water tank. A mounting hole is opened on the flange 10, and it cooperates with the threaded rod 101 and the nut to facilitate disassembly and replacement, making the installation process simpler and faster.

[0032] Specifically, by setting up the anti-backflow component 6, through the cooperation between the telescopic rod 61, the spring 62 and the check plate 63, when the water flow hits the check plate 63, it can flow normally, and when the water flow tries to flow back, the check plate 63 can be quickly closed by the telescopic rod 61 and the spring 62, and the elasticity of the spring 62 can automatically adjust the position of the check plate 63 according to the change of the water flow pressure, effectively preventing the water flow from flowing in the opposite direction, and ensuring the normal operation of the gas explosion fountain system.

[0033] Specifically, by setting the support assembly 7, the support plate 71 can provide stable support for the anti-backflow assembly 6. When the water flow pressure changes frequently, the stable support can enable the check piece 63 to always accurately respond to the change of water flow and close in time to prevent backflow. Through the cooperation of the rotating rod 72 and the sliding rod 73, the check piece 63 is smoother and more flexible when opening and closing. When the water flows in the forward direction, the check piece 63 can be smoothly opened under the guidance of the rotating rod 72 and the sliding rod 73, thereby reducing the water flow resistance and improving the working efficiency of the fountain.

[0034] Working principle:

[0035] First, when water flows in, it will first pass through the filter screen 4 to effectively filter out the impurities therein. In the anti-backflow assembly 6, the force of the water flow pushes the telescopic rod 61 to extend and the spring 62 to stretch, prompting the check plate 63 to move to the right. At the same time, the support plate 71 moves toward the axial direction with the help of the slide rod 73 and rotates through the rotating rod 72, so that the check plate 63 is opened and the water can flow out smoothly. When the water has a tendency to flow back, the telescopic rod 61 and the spring 62 are compressed by pressure, causing the check plate 63 to move to the left. The block on the check plate 63 fits tightly with the shell 1, and the shell 1 and the pipe 9 are firmly connected through the joint 8. The upper clamp 81 and the lower clamp 82 are fixed by screws and bolts to allow water to flow into the pipe 9. At this point, the entire work process ends.

[0036] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0037] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.

[0038] It should be noted that the equipment structure and drawings of the utility model mainly describe the principle of the utility model. In terms of the technology of the design principle, the settings of the power mechanism, power supply system and control system of the device are not fully described. On the premise that the technical personnel in this field understand the principle of the above-mentioned utility model, the details of its power mechanism, power supply system and control system can be clearly known. The control method of the application document is automatic control through a controller, and the control circuit of the controller can be realized by simple programming by technical personnel in this field.

[0039] The standard parts used therein can all be purchased from the market and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the structures and principles of the components known to technical personnel in this field can be known by these technical personnel through technical manuals or through conventional experimental methods.

[0040] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments.

[0041] For those skilled in the art, various changes, modifications, substitutions and variations can be made to these implementations without departing from the principles and spirit of the present invention, and they still fall within the protection scope of the present invention.

Claims

1. A backflow prevention device for a gas explosion fountain, comprising a housing (1), characterized in that: A circular ring (2) is provided inside the left side of the shell (1), a cross limit frame (3) is fixedly connected inside the circular ring (2), a filter screen plate (4) is fixedly connected inside the cross limit frame (3), a fixed plate (5) is fixedly installed at the axis of the cross limit frame (3), an anti-backflow assembly (6) is fixedly installed on the right side of the fixed plate (5), and the anti-backflow assembly (6) comprises a telescopic rod (61), a spring (62) and a non-return plate (63), the right side of the telescopic rod (61) and the left side of the non-return plate (63) are fixedly connected, and the inner wall of the spring (62) is sleeved on the circumferential surface of the telescopic rod (61). A support assembly (7) is fixedly installed on the right side of the cross limit frame (3), and the support assembly (7) includes a support plate (71), a rotating rod (72) and a sliding rod (73). The right side of the support plate (71) is connected to the circumferential surface of the rotating rod (72), and the left inner wall of the support plate (71) is connected to the circumferential surface of the sliding rod (73). A joint (8) is installed on the right side of the shell (1), and the joint (8) includes an upper clamping piece (81) and a lower clamping piece (82). The upper clamping piece (81) and the lower clamping piece (82) are fixedly connected by screws and bolts. A pipe (9) is installed on the right side of the joint (8).

2. The backflow prevention device for gas explosion fountain according to claim 1, characterized in that: A slide groove is provided on the right side of the cross limiting frame (3), and the front and rear ends of the slide rod (73) are connected to the inner wall of the slide groove.

3. The backflow prevention device for gas explosion fountain according to claim 1, characterized in that: A fixing block is fixedly mounted on the left side of the non-return plate (63), and the upper and lower ends of the rotating rod (72) are connected to the inner wall of the fixing block.

4. The backflow prevention device for gas explosion fountain according to claim 1, characterized in that: The left side of the spring (62) is connected to the right side of the fixing plate (5), and the right side of the spring (62) is connected to the left side of the non-return plate (63).

5. The backflow prevention device for gas explosion fountain according to claim 1, characterized in that: A threaded hole is provided on the top of the joint (8), and the inner wall of the threaded hole is threadedly connected to the circumferential surface of the screw.

6. The backflow prevention device for gas explosion fountain according to claim 1, characterized in that: A flange (10) is fixedly mounted on the left side of the housing (1), a mounting hole is provided on the left side of the flange (10), an inner wall of the mounting hole is threadedly connected to the circumferential surface of the threaded rod (101), and the left side of the threaded rod (101) is threadedly connected to the inner wall of the nut.

7. The backflow prevention device for gas explosion fountain according to claim 1, characterized in that: A clamping block is fixedly mounted on the circumferential surface of the non-return plate (63), and rubber rings are fixedly mounted on the inner walls of the upper clamping plate (81) and the lower clamping plate (82).

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